1. 將默認的配置文件復制出來
cp -n /lib/systemd/system/docker.service /etc/systemd/system/docker.service
2. 將加速器地址添加到配置文件的啟動命令
sudo sed -i "s|ExecStart=/usr/bin/docker daemon|ExecStart=/usr/bin/docker daemon --registry-
mirror=https://gbpursha.mirror.aliyuncs.com|g" /etc/systemd/system/docker.service
sudo systemctl daemon-reload
3. 重啟Docker
sudo service docker restart